Seiko Cal. 6671 - 684

The Seiko 6671-684 represents an important milestone in Seiko's 1967 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-02e08ac71ed5]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1967

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